experimental design

Question 1

3 types of experimental design

Answer 1

independent
repeated measures
matched pairs

Question 2

how do you get an independent group

Answer 2

recruit a group
divide into 2
one group does the task first with one condition while the other group does the task for the second condition
compare results

Question 3

advantages of an independent group

Answer 3

no order effect
less likely to guess aim so no demand characteristics

Question 4

disadvantages of independent group

Answer 4

participant variables
less economical

Question 5

how to get a repeated measure group

Answer 5

recruit a group
divide into 2
one group experiences condition A then B
other group experience condition B then A

Question 6

advantages of repeated measure group

Answer 6

more economical as les PP
reduce participant variables- comparing with themselves

Question 7

disadvantages of repeated measure group

Answer 7

order effect- by counter balancing
may guess the aim- demand characteristics

Question 8

how to get a matched pair group

Answer 8

recruit a group
find out what sort of people you have
recruit another group that matches relevant characteristics
complete an independent measures experiment

Question 9

advantages of matched pairs group

Answer 9

reduced participant variables
no order effect- less demand characteristics

Question 10

disadvantages of matched pairs group

Answer 10

less economical as more pp
hard to get matched pairs

Question 11

what is counterbalancing

Answer 11

used to reduce order effects in a repeated measure design ABBA